As a new report shows accelerating warming threatens 70 percent of the world’s workers, Antonio Guterres warns that wealthy countries expanding fossil fuel industries “are signing away our future.”By Bob BerwynOngoing deadly heat waves around the world, set against the backdrop of a seemingly endless series of annual, monthly and daily heat records on every continent and ocean, prompted United Nations Secretary-General Antonio Guterres to make an urgent call to “turbo charge” cuts to fossil fuels.